Form 8.3 TRITAX BIG BOX REIT PLC

FORM 8.3

PUBLIC OPENING POSITION DISCLOSURE/DEALING DISCLOSURE BY

A PERSON WITH INTERESTS IN RELEVANT SECURITIES REPRESENTING 1% OR

MORE

Rule 8.3 of the Takeover Code (the "Code")

1.

KEY INFORMATION

(a)

Full name of discloser:

Barclays PLC.

(b)

Owner or controller of interest and short

positions disclosed, if different from 1(a):

(c)

Name of offeror/offeree in relation to whose

TRITAX BIG BOX REIT PLC

relevant securities this form relates:

(d)

If an exempt fund manager connected with an

offeror/offeree, state this and specify identity of

offeror/offeree:

(e)

Date position held/dealing undertaken:

12 Aug 2025

(f)

In addition to the company in 1(c) above, is the discloser making

YES:

disclosures in respect of any other party to the offer?

WAREHOUSE REIT PLC

2.

POSITIONS OF THE PERSON MAKING THE DISCLOSURE

(a)

Interests and short positions in the relevant securities of the offeror or offeree

to which the disclosure relates following the dealing(if any)

Class of relevant security:

1p ordinary

Interests

Short Positions

Number

(%)

Number

(%)

(1)

Relevant securities owned

and/or controlled:

14,378,825

0.58%

12,341,090

0.50%

(2)

Cash-settled derivatives:

10,874,552

0.44%

13,215,885

0.53%

(3)

Stock-settled derivatives (including options)

and agreements to purchase/sell:

0

0.00%

0

0.00%

TOTAL:

25,253,377

1.02%

25,556,975

1.03%

(b)

Rights to subscribe for new securities (including directors and other executive

options)

Class of relevant security in relation to

which subscription right exists

Details, including nature of the rights

concerned and relevant percentages:

3.

DEALINGS (IF ANY) BY THE PERSON MAKING THE DISCLOSURE

(a)

Purchases and sales

Class of relevant

Purchase/sale

Number of

Price per unit

security

securities

1p ordinary

Purchase

444,943

1.4080 GBP

1p ordinary

Purchase

250,970

1.3930 GBP

1p ordinary

Purchase

85,430

1.4156 GBP

1p ordinary

Purchase

74,038

1.3943 GBP

1p ordinary

Purchase

62,977

1.4033 GBP

1p ordinary

Purchase

60,443

1.4137 GBP

1p ordinary

Purchase

57,110

1.4065 GBP

1p ordinary

Purchase

36,593

1.4150 GBP

1p ordinary

Purchase

29,883

1.4158 GBP

1p ordinary

Purchase

24,802

1.4148 GBP

1p ordinary

Purchase

17,759

1.3974 GBP

1p ordinary

Purchase

11,834

1.4142 GBP

1p ordinary

Purchase

10,360

1.4176 GBP

1p ordinary

Purchase

10,174

1.4165 GBP

1p ordinary

Purchase

9,641

1.3960 GBP

1p ordinary

Purchase

9,090

1.3970 GBP

1p ordinary

Purchase

8,841

1.4116 GBP

1p ordinary

Purchase

8,400

1.4000 GBP

1p ordinary

Purchase

6,601

1.4010 GBP

1p ordinary

Purchase

5,448

1.4190 GBP

1p ordinary

Purchase

5,313

1.4060 GBP

1p ordinary

Purchase

5,146

1.4030 GBP

1p ordinary

Purchase

4,481

1.3940 GBP

1p ordinary

Purchase

4,358

1.4200 GBP

1p ordinary

Purchase

4,350

1.4136 GBP

1p ordinary

Purchase

4,138

1.4100 GBP

1p ordinary

Purchase

3,587

1.3980 GBP

1p ordinary

Purchase

3,301

1.4020 GBP

1p ordinary

Purchase

3,050

1.3990 GBP

1p ordinary

Purchase

2,850

1.3950 GBP

1p ordinary

Purchase

2,373

1.3988 GBP

1p ordinary

Purchase

2,258

1.4070 GBP

1p ordinary

Purchase

1,726

1.4140 GBP

1p ordinary

Purchase

1,272

1.4160 GBP

1p ordinary

Purchase

1,199

1.4040 GBP

1p ordinary

Purchase

648

1.4180 GBP

1p ordinary

Purchase

410

1.4120 GBP

1p ordinary

Purchase

232

1.4110 GBP

1p ordinary

Purchase

161

1.4130 GBP

1p ordinary

Purchase

9

1.4170 GBP

1p ordinary

Sale

450,392

1.4155 GBP

1p ordinary

Sale

395,241

1.3930 GBP

1p ordinary

Sale

82,870

1.4128 GBP

1p ordinary

Sale

80,694

1.4114 GBP

1p ordinary

Sale

77,622

1.4109 GBP

1p ordinary

Sale

53,428

1.4141 GBP

1p ordinary

Sale

48,602

1.4079 GBP

1p ordinary

Sale

21,499

1.4127 GBP

1p ordinary

Sale

21,351

1.4082 GBP

1p ordinary

Sale

21,024

1.4110 GBP

1p ordinary

Sale

20,002

1.4076 GBP

1p ordinary

Sale

11,091

1.3960 GBP

1p ordinary

Sale

9,090

1.3970 GBP

1p ordinary

Sale

8,962

1.3940 GBP

1p ordinary

Sale

8,784

1.4000 GBP

1p ordinary

Sale

8,236

1.4070 GBP

1p ordinary

Sale

7,177

1.4150 GBP

1p ordinary

Sale

6,601

1.4010 GBP

1p ordinary

Sale

6,035

1.4091 GBP

1p ordinary

Sale

5,448

1.4190 GBP

1p ordinary

Sale

5,423

1.3990 GBP

1p ordinary

Sale

5,313

1.4060 GBP

1p ordinary

Sale

4,754

1.4030 GBP

1p ordinary

Sale

4,387

1.3977 GBP

1p ordinary

Sale

4,138

1.4100 GBP

1p ordinary

Sale

3,587

1.3980 GBP

1p ordinary

Sale

3,301

1.4020 GBP

1p ordinary

Sale

3,001

1.4064 GBP

1p ordinary

Sale

3,000

1.4165 GBP

1p ordinary

Sale

2,850

1.3950 GBP

1p ordinary

Sale

2,415

1.4009 GBP

1p ordinary

Sale

1,726

1.4140 GBP

1p ordinary

Sale

1,679

1.4093 GBP

1p ordinary

Sale

1,216

1.4180 GBP

1p ordinary

Sale

1,199

1.4040 GBP

1p ordinary

Sale

751

1.4080 GBP

1p ordinary

Sale

427

1.4160 GBP

1p ordinary

Sale

427

1.4170 GBP

1p ordinary

Sale

410

1.4120 GBP

1p ordinary

Sale

352

1.4185 GBP

1p ordinary

Sale

161

1.4130 GBP

1p ordinary

Sale

36

1.4200 GBP

(b)

Cash-settled derivative transactions

Class of

Product

Nature of dealing

Number of

Price per

relevant

description

reference

unit

security

securities

1p ordinary

SWAP

Decreasing Short

177,802

1.3930 GBP

1p ordinary

SWAP

Decreasing Short

17,168

1.3931 GBP

1p ordinary

SWAP

Decreasing Short

322

1.4040 GBP

1p ordinary

SWAP

Decreasing Short

222

1.4072 GBP

1p ordinary

SWAP

Decreasing Short

48,602

1.4079 GBP

1p ordinary

SWAP

Decreasing Short

893

1.4098 GBP

1p ordinary

SWAP

Decreasing Short

77,622

1.4109 GBP

1p ordinary

SWAP

Decreasing Short

1,857

1.4117 GBP

1p ordinary

SWAP

Decreasing Short

8,127

1.4121 GBP

1p ordinary

SWAP

Decreasing Short

3,037

1.4137 GBP

1p ordinary

SWAP

Decreasing Short

5,653

1.4141 GBP

1p ordinary

SWAP

Decreasing Short

5,278

1.4146 GBP

1p ordinary

SWAP

Decreasing Short

1,495

1.4155 GBP

1p ordinary

SWAP

Decreasing Short

119

1.4158 GBP

1p ordinary

SWAP

Decreasing Short

3,743

1.4165 GBP

1p ordinary

SWAP

Decreasing Short

352

1.4185 GBP

1p ordinary

SWAP

Increasing Short

213,376

1.3930 GBP

1p ordinary

SWAP

Increasing Short

17,759

1.3974 GBP

1p ordinary

SWAP

Increasing Short

17,507

1.3996 GBP

1p ordinary

SWAP

Increasing Short

28,300

1.4007 GBP

1p ordinary

SWAP

Increasing Short

30,521

1.4015 GBP

1p ordinary

SWAP

Increasing Short

1,453

1.4114 GBP

1p ordinary

SWAP

Increasing Short

6,534

1.4137 GBP

1p ordinary

SWAP

Increasing Short

845

1.4160 GBP

1p ordinary

SWAP

Increasing Short

10,174

1.4165 GBP

1p ordinary

SWAP

Increasing Short

10,360

1.4176 GBP

1p ordinary

CFD

Decreasing Short

3,923

1.3930 GBP

1p ordinary

CFD

Decreasing Short

29,103

1.3979 GBP

1p ordinary

CFD

Decreasing Short

2,758

1.4010 GBP

1p ordinary

CFD

Decreasing Short

37,913

1.4090 GBP

1p ordinary

CFD

Decreasing Short

36,884

1.4107 GBP

1p ordinary

CFD

Decreasing Short

148

1.4133 GBP

(c)

Stock-settled derivative transactions (including options)

(i)

Writing, selling, purchasing or varying

Class

Product

Writing,

Number

Exercise

Type

Expiry

Option

of

description

purchasing,

of

price

date

money

relevant

selling,

securities

per unit

paid/

security

varying etc

to which

received

option

per unit

relates

(ii)

Exercise

Class of relevant

Product description

Exercising/ exercised against

Number of

Exercise price per

security

securities

unit

(d)

Other dealings (including subscribing for new securities)

Class of relevant

Nature of Dealings

Details

Price per unit (if

security

applicable)

4.

OTHER INFORMATION

(a)

Indemnity and other dealings arrangements

Details of any indemnity or option arrangement, or any agreement or understanding,

formal or informal, relating to relevant securities which may be an inducement to deal

or refrain from dealing entered into by the exempt principal trader making the disclosure and any party

to the offer or any person acting in concert with a party to the offer:

NONE

(b)

Agreements, arrangements or understandings relating to options or derivatives

Details of any agreement, arrangement or understanding, formal or informal, between

the person making the disclosure and any other person relating to:

(i) the voting rights of any relevant securities under any option; or

(ii) the voting rights of future acquisition or disposal of any relevant securities to which

any derivative is referenced:

NONE

(c)

Attachments

Is a Supplemental Form 8 (Open Positions) attached?

No

Date of disclosure:

13 Aug 2025

Contact name:

Large Holdings Regulatory Operations

Telephone number:

020 3134 7213